Exhaust gas catalyst containing copper-exchanged zeolite
β Scribed by S. Takeshima
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- English
- Weight
- 126 KB
- Volume
- 11
- Category
- Article
- ISSN
- 0144-2449
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π SIMILAR VOLUMES
Metal substrated ZSM-5 zeolites ion-exchanged with copper are effective catalysts in the elimination of nitrogen oxides from lean automotive exhaust gases when propene works as a reductant. Some co-cations improve the catalytic activity of Cu-ZSM-5. The critical temperature for the deactivation of C
Deactivation of copper-ion-exchanged hydrogen-mordenite-type xeolite catalyst by SO\* for NO reduction by NH, was examined in a fixed-bed flow reactor. ' The deactivation of the catalyst was strongly dependent on reaction temperature. At high reaction temperatures over 300 "c, the catalyst did not l